A PLANETARY REMINDER: As the sky fades to black on Friday evening, May 10th, Venus and Mars will pop out of the twilight a mere one-third of a degree apart. (The tip of your pinky held at arms length is about twice that wide.) It's a rare opportunity to peer through a telescope and see two planets at once -- or simply enjoy them with your unaided eye. Look toward the west after sunset to find the pair. Visit spaceweather.com for more information and recent images of the ongoing planet show.